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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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4 // * 4 // * *
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18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // Previous authors: G. Guerrieri, S. Guatelli << 26 // Authors: S. Guatelli and M. G. Pia, INFN Genova, Italy
27 // Authors (since 2007): S. Guatelli, Universi << 27 //
>> 28 // Based on code developed by the undergraduate student G. Guerrieri
>> 29 // Note: this is a preliminary beta-version of the code; an improved
>> 30 // version will be distributed in the next Geant4 public release, compliant
>> 31 // with the design in a forthcoming publication, and subject to a
>> 32 // design and code review.
28 // 33 //
29 #include "G4HumanPhantomPrimaryGeneratorAction 34 #include "G4HumanPhantomPrimaryGeneratorAction.hh"
30 #include "globals.hh" << 35 #include "G4HumanPhantomConstruction.hh"
31 #include "G4SystemOfUnits.hh" << 36 #include "G4HumanPhantomPrimaryGeneratorMessenger.hh"
>> 37
32 #include "G4Event.hh" 38 #include "G4Event.hh"
33 #include "G4GeneralParticleSource.hh" << 39 #include "G4ParticleGun.hh"
34 #include "G4ParticleTable.hh" 40 #include "G4ParticleTable.hh"
35 #include "G4ParticleDefinition.hh" 41 #include "G4ParticleDefinition.hh"
>> 42 #include "globals.hh"
36 43
37 #include "G4RunManager.hh" 44 #include "G4RunManager.hh"
>> 45 //#ifdef G$ANALYSIS_USE
>> 46 //#include "G4HumanPhantomAnalysisManager.hh"
>> 47 //#endif
>> 48
38 #include "G4ios.hh" 49 #include "G4ios.hh"
39 50
40 G4HumanPhantomPrimaryGeneratorAction::G4HumanP 51 G4HumanPhantomPrimaryGeneratorAction::G4HumanPhantomPrimaryGeneratorAction()
>> 52 :beamKind("beamAlongZ"),worldLength(200.)
41 { 53 {
42 particleGun = new G4GeneralParticleSource(); << 54 G4int n_particle = 1;
>> 55
>> 56 messenger= new G4HumanPhantomPrimaryGeneratorMessenger(this);
>> 57
>> 58 particleGun = new G4ParticleGun(n_particle);
>> 59
>> 60 probability.push_back(0.1667);
>> 61 probability.push_back(0.1667);
>> 62 probability.push_back(0.1667);
>> 63 probability.push_back(0.1667);
>> 64 probability.push_back(0.1666);
>> 65 probability.push_back(0.1666);
>> 66
>> 67 // Default Particle
>> 68 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
>> 69
>> 70 particleGun->SetParticleDefinition(particleTable->FindParticle("geantino"));
>> 71 particleGun->SetParticleEnergy(100.*MeV);
43 } 72 }
44 73
45 G4HumanPhantomPrimaryGeneratorAction::~G4Human 74 G4HumanPhantomPrimaryGeneratorAction::~G4HumanPhantomPrimaryGeneratorAction()
46 { 75 {
47 delete particleGun; 76 delete particleGun;
>> 77 delete messenger;
48 } 78 }
49 79
50 void G4HumanPhantomPrimaryGeneratorAction::Gen 80 void G4HumanPhantomPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
51 { 81 {
52 particleGun -> GeneratePrimaryVertex(anEvent << 82 if (beamKind == "beamAlongZ") GenerateBeamAlongZ();
>> 83 if (beamKind == "beamAlongY") GenerateBeamAlongY();
>> 84 if (beamKind == "beamAlongX") GenerateBeamAlongX();
>> 85 if (beamKind == "isotropicFlux") GenerateIsotropicFlux();
>> 86
>> 87 particleGun->SetParticlePosition(G4ThreeVector(x0, y0,z0));
>> 88 particleGun->GeneratePrimaryVertex(anEvent);
>> 89 }
>> 90
>> 91 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongZ()
>> 92 {
>> 93 z0 = 0.5*(worldLength)*cm;
>> 94 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 95 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 96 G4ThreeVector direction(0.,0.,-1.);
>> 97 particleGun->SetParticleMomentumDirection(direction);
>> 98 }
>> 99
>> 100 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongX()
>> 101 {
>> 102 x0 = -0.5*(worldLength)*cm;
>> 103 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 104 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 105
>> 106 G4ThreeVector direction(1.,0.,0.);
>> 107 particleGun->SetParticleMomentumDirection(direction);
>> 108 }
>> 109 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongY()
>> 110 {
>> 111 y0 = 0.5*(worldLength)*cm;
>> 112 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 113 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 114
>> 115 G4ThreeVector direction(0.,-1.,0.);
>> 116 particleGun->SetParticleMomentumDirection(direction);
>> 117 }
>> 118
>> 119 void G4HumanPhantomPrimaryGeneratorAction::GenerateIsotropicFlux()
>> 120 {
>> 121 G4double random = G4UniformRand();
>> 122 G4double sum = 0.;
>> 123 G4int i = 0;
>> 124
>> 125 while(sum<random){sum += probability[i]; i++;}
>> 126
>> 127 if(i==1)
>> 128 {
>> 129 z0 = -0.5*(worldLength-2.)*cm;
>> 130 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 131 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 132 }
>> 133
>> 134 if(i==2)
>> 135 {
>> 136 y0 = -0.5*(worldLength-2.)*cm;
>> 137 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 138 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 139 }
>> 140
>> 141 if(i==3)
>> 142 {
>> 143 x0 = -0.5*(worldLength-2.)*cm;
>> 144 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 145 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 146 }
>> 147
>> 148 if (i==4)
>> 149 {
>> 150 z0 = 0.5*(worldLength-2.)*cm;
>> 151 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 152 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 153 }
>> 154
>> 155 if(i==5)
>> 156 {
>> 157 y0 = 0.5*(worldLength-2.)*cm;
>> 158 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 159 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 160 }
>> 161
>> 162 if(i==6)
>> 163 {
>> 164 x0 = 0.5*(worldLength-2.)*cm;
>> 165 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 166 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 167 }
>> 168
>> 169 G4double a,b,c;
>> 170 G4double n;
>> 171 do{
>> 172 a = (G4UniformRand()-0.5)/0.5;
>> 173 b = (G4UniformRand()-0.5)/0.5;
>> 174 c = (G4UniformRand()-0.5)/0.5;
>> 175 n = a*a+b*b+c*c;
>> 176 }while(n > 1 || n == 0.0);
>> 177 n = std::sqrt(n);
>> 178 a /= n;
>> 179 b /= n;
>> 180 c /= n;
>> 181
>> 182 G4ThreeVector direction(a,b,c);
>> 183 particleGun->SetParticleMomentumDirection(direction);
>> 184 }
>> 185
>> 186 void G4HumanPhantomPrimaryGeneratorAction::SetBeam(G4String beam)
>> 187 {
>> 188 if((beam == "beamAlongZ")||(beam == "beamAlongX")||
>> 189 (beam == "beamAlongY")||(beam == "isotropicFlux")) beamKind = beam;
>> 190
>> 191 else G4cout<<"This option is not valid "<<
>> 192 "---> beamAlongZ/beamAlongY/beamAlongX/isotropicFlux"
>> 193 <<G4endl;
53 } 194 }
54 195
55 196